Mulch Calculator

Cubic yards and bags of mulch for garden beds and landscaping.

Quick answer: Calculate mulch needs online. Discover exact cubic yards or standard bag counts required for your garden landscaping project. Completely free.

in
Mulch needed1.48 cubic yards
2 cu ft bags20
Cubic feet40
Note2–4 inches deep is standard. Deeper suppresses weeds better.

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Calculate how much mulch to order in cubic yards for bulk delivery, or how many 2 cu ft bags to buy at a garden center.

How it works

  1. Enter the length and width of the garden bed.
  2. Define how many inches deep you want the mulch to be.
  3. Read the output for total cubic yards and standard 2-cu-ft bag counts.

Frequently asked questions

How deep should mulch be?

2-4 inches is ideal. Shallower fails to suppress weeds; deeper than 4 inches can prevent water from reaching roots.

Bulk vs bags — which is cheaper?

Bulk is far cheaper per cubic yard for quantities over 2 yards. Bags are convenient only for small areas.

Should mulch touch plant stems?

No — keep mulch 2-3 inches away from stems and tree trunks to prevent rot and pest damage.

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